According to Bede, Hilda was born in 614, into the Deiran royal household. She was the second daughter of Hereric, nephew of Edwin, King of Deira, and his wife Breguswith.[1] When Hilda was still an infant, her father was poisoned while in exile at the court of the British King of Elmet in what is now West Yorkshire. In 616 CE, Edwin killed Aethefrith, the son of Æthelric of Bernicia, in battle. He created the kingdom of Northumbria and took the throne. Hilda was brought up at King Edwin's court.

In 625, the widowed Edwin married the Christian princess, Æthelburh of Kent, daughter of King Æthelberht of Kent and the Merovingian princess Bertha of Kent. As part of the marriage contract, Aethelburgh was allowed to continue her Roman Christian worship and was accompanied to Northumbria with her chaplain, Paulinus of York, a Roman monk sent to England in 601 to assist Augustine of Canterbury. Augustine's mission in England was based in Kent, and is referred to as the Gregorian mission after the pope who sent him.[2] As queen, Æthelburh continued to practice her Christianity and no doubt influenced her husband's thinking as her mother Bertha had influenced her father.

In 627 King Edwin was baptised on Easter Day, 12 April, along with his entire court, which included the 13-year-old Hilda,[2] in a small wooden church hastily constructed for the occasion near the site of the present York Minster.

In 633 Northumbria was overrun by the neighbouring pagan King of Mercia, at which time King Edwin fell in battle. Paulinus accompanied Hilda and Queen Æthelburh and her companions to the Queen's home in Kent. Queen Æthelburh founded a convent at Lyminge and it is assumed that Hilda remained with the Queen-Abbess.[3] Hilda's elder sister, Hereswith, married Ethelric, brother of King Anna of East Anglia, who with all of his daughters became renowned for their Christian virtues. Later, Hereswith became a nun at Chelles Abbey in Gaul (modern France). Bede resumes Hilda's story at a point when she was about to join her widowed sister at Chelles Abbey. At the age of 33, Hilda decided instead to answer the call of Bishop Aidan of Lindisfarne and returned to Northumbria to live as a nun.[4]

In 657 Hilda became the founding abbess of Whitby Abbey, then known as Streoneshalh; she remained there until her death.[6] Archaeological evidence shows that her monastery was in the Celtic style, with its members living in small houses, each for two or three people. The tradition in double monasteries, such as Hartlepool and Whitby, was that men and women lived separately but worshipped together in church. The exact location and size of the church associated with this monastery is unknown.

Bede states that the original ideals of monasticism were maintained strictly in Hilda's abbey. All property and goods were held in common; Christian virtues were exercised, especially peace and charity. Everyone had to study the Bible and do good works.

Five men from this monastery later became bishops.[5] Two, John of Beverley, Bishop of Hexham and Wilfrid, Bishop of York, were canonized for their service to the Christian church at a critical period in its fight against paganism.

Bede describes Hilda as a woman of great energy, who was a skilled administrator and teacher. As a landowner she had many in her employ to care for sheep and cattle, farming and woodcutting. She gained such a reputation for wisdom that kings and princes sought her advice.[5] She also had a concern for ordinary folk such as Cædmon, however. He was a herder at the monastery, who was inspired in a dream to sing verses in praise of God. Hilda recognized his gift and encouraged him to develop it. Bede writes, "All who knew her called her mother because of her outstanding devotion and grace".[6]

The prestige of Whitby is reflected in the fact that King Oswiu chose Hilda's monastery as the venue for the Synod of Whitby,[2] the first synod of the Church in his kingdom. He invited churchmen from as far away as Wessex to attend the synod. Most of those present, including Hilda, accepted the King's decision to adopt the method of calculating Easter currently used in Rome, establishing Roman practice as the norm in Northumbria. The monks from Lindisfarne, who would not accept this, withdrew to Iona and later, to Ireland.

Hilda suffered from a fever for the last seven years of her life, but she continued to work until her death on 17 November 680 AD, at what was then the advanced age of sixty-six. In her last year she set up another monastery, fourteen miles from Whitby, at Hackness. She died after receiving viaticum, and her legend holds that at the moment of her death the bells of the monastery of Hackness tolled. A nun there named Begu claimed to have witnessed Hilda's soul being borne to heaven by angels.[7]

A local legend says that when sea birds fly over the abbey they dip their wings in honour of Saint Hilda. Another legend tells of a plague of snakes which Hilda turned to stone, supposedly explaining the presence of ammonitefossils on the shore; heads were carved onto these 'petrified snakes' to honour this legend.[8] In fact, the ammonite genus Hildoceras takes its scientific name from St. Hilda. It was not unknown for local “artisans” to carve snakes' heads onto ammonites, and sell these “relics” as proof of her miracle. The coat of arms of nearby Whitby includes three such 'snakestones', and depictions of ammonites appear in the shield of the College of St Hild and St Bede, Durham.[9] A carved ammonite stone is set into the wall by the entrance to the former chapel of St Hild's College, Durham, which later became part of the College of St Hild and St Bede.

The veneration of St. Hilda from an early period is attested by the inclusion of her name in the calendar of St. Willibrord, written at the beginning of the 8th century. According to one tradition, her relics were translated to Glastonbury by King Edmund, Another tradition holds that St. Edmund brought her relics to Gloucester.[10]

In the Roman Catholic Church, the feast day of St. Hilda is 17 November. In some parts of the Anglican Communion, her feast is on 18 November, while in some others, such as the Anglican Church of Australia and the Anglican Church of Canada, it is on 17 November. In the Church of England however, it is kept on 19 November. In the calendar approved for formerly Anglican Personal Ordinariate and Pastoral Provision parishes in the Roman Catholic Church, the feast day of St. Hilda is celebrated on 23 June, together with those of St. Ethelreda, Abbess of Ely, d. 679, and St. Mildred, Abbess of Minster-in-Thanet, d. c.700.

Hilda is considered one of the patron saints of learning and culture, including poetry, due to her patronage of Cædmon. St. Hilda is the patron saint of the National Cathedral School for Girls in Washington, D.C.

In addition, St. Hilda's College, Oxford, established in 1893 for female students, remained with that status for over 100 years, before turning co-educational when it was deemed that the percentage of women studying at Oxford had risen to near 50 percent. The symbol of the college is the ammonite of St Hilda and during the centenary, 100 silver amonites were created; now proudly owned by alumni of the college in honour of St. Hilda's achievements - and those of the first 100 years of female students at the college.

There is said to be the wraith of St Hilda, who appears in the ruins wrapped in a shroud, and the bells of the abbey can be heard ringing under the water, where they sank with the ship taking them to London after the abbey was dismantled.[11]

There is an Anglican church named after St. Hilda in the Cross Green area of Leeds. It was opened in September 1882. There is a statue of St. Hilda in the nave, depicting her as the Mother of her Abbey at Whitby. She also appears in a stained glass window at the east end of the church. The church still is active and a sung mass is held there every Sunday. Several small streets in the immediate area are named after the church - St. Hilda's Mount, St. Hilda's Road, among them.

A group of Anglo-Catholic deaconesses founded in 1910 by Fr Frederick Burgess lived on the grounds of Christ Church, New Haven, Connecticut, in a house they called St. Hilda's House. The deaconesses of St. Hilda's House served the church, the children of the church school, and the poor and orphaned of New Haven until the early 1970s operating a free medicine clinic, soup kitchen and many other ministries. Today St. Hilda's House- Episcopal Service Corps program at Christ Church New Haven, has retained the name, and part of the legacy of the St. Hilda's deaconesses.[14]

St. Hilda's Diocesan High School is an Anglican boarding school for girls in Brown's Town, St. Ann, Jamaica, founded by Canon James Philip Hall, Rector of St. Mark's Anglican Church in Brown's Town 1906-07. St. Hilda's College in Buenos Aires, Argentina was founded in 1912.

There are two schools situated in Australia in recognition of St. Hilda. They are both 'St. Hilda's Anglican School for Girls' which is an independent, girls' school in Southport,[15] South-East Australia and Mosman Park, Western Australia.[16]

On the upper west side of Manhattan in New York City is St. Hilda's and St. Hugh's School, an independent Episcopal day school that opened its doors in 1950. The school is coeducational and includes toddlers to grade eight.

St. Hilda is honoured in Singapore in the St. Hilda's primary and secondary schools.